Recording Automation Data

In addition to working with envelopes, you can record automation data in Soundtrack Pro. You can record movements you make to faders, sliders, and other onscreen controls using the pointer. You can also connect a supported control surface to your computer and record movements to controls and faders on the control surface. When you record movements to onscreen controls or control surface controls, the corresponding envelope in the Timeline (or File Editor) changes to display the recorded automation data. You can edit the envelope to fine-tune the automation data after recording.

Automation Modes

Soundtrack Pro provides three modes for using and recording automation. The automation modes determine whether automation data is recorded and what happens when you release the control.

  • Read: In Read mode, existing automation data is active when you play the project, but no new automation data is recorded.
  • Touch: In Touch mode, movements to controls are recorded when you play the project, overwriting any existing automation data until you release the control. When you release a control in Touch mode, the control returns to the value it previously had at the point in the Timeline where you release the control. No envelope points after that point are added or changed.
  • Latch: In Latch mode, movements to controls are recorded when you play the project, overwriting any data from the point you start recording until you stop playing the project. When you release a control in Latch mode, the control maintains the same value at which you released it.
To record automation data for movements to controls
  1. Choose either Touch or Latch from the Automation Mode pop-up menu.

  2. Set the playhead to a position before the point where you want to start recording.

  3. Click Play (or press the Space bar) to start the project playing.

  4. While the project plays, move the control you want to record.

Once you have recorded automation data, you can show the envelope for the control and add and adjust envelope points on the envelope to fine-tune the automation. For information on working with envelopes, see Working with Envelopes. For more information on working with control surfaces, see Using Control Surfaces with Soundtrack Pro.

Thinning Envelope Points in Recorded Automation Data

Recording automation data can generate a large number of envelope points. The number of envelope points recorded can make editing envelopes difficult, and in some cases affect playback performance.

You can reduce or “thin” the number of envelope points recorded from a control surface in the project preferences. You set the amount of thinning using the Automation Recording Sensitivity slider. The automation data is thinned when you finish recording automation.

To set the amount of thinning
  1. Choose Soundtrack Pro > Preferences, then click the General button.

  2. In the General pane, drag the Automation Recording Sensitivity slider to adjust the amount of thinning.

    When the slider is set to High, no thinning occurs. The envelope contains every movement of the control. Dragging the slider to any position other than High results in some thinning of envelope points. By default, the slider is set to a moderate amount of thinning.

For more information about Soundtrack Pro project preferences, see Project Preferences.